what are Checked & Unchecked exceptions ?
Answers were Sorted based on User's Feedback
Answer / aparna
Checked exceptions should be taken care by the user using
try and catch blocks otherwise runtime error occurs
for eg:
class.forName() method throws ClassNotFoundException which
should be caught between try and catch blocks
Unchecked exceptions are taken care by the jvm itself, user
need not worry about these type of exceptions
for eg:
Integer.parseInt() method throws NullPointerException which
need not be placed between try and catch blocks
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / harmeet
Checked Exceptions must be caught and thrown by the user
otherwise compile time error will be displayed saying it
must be catched. We've to catch those exceptions using try
and catch blocks.
Eg:Class.forName() throws ClassNotFoundException, when
trying to load the specified file in class.forName().
whereas Unchecked Exceptions are handled by jvm, user need
not to handle those exceptions.
| Is This Answer Correct ? | 3 Yes | 0 No |
What are the two environment variables that must be set in order to run any java programs?
Why main method is called first in java?
To obtain design information about an object, which class in used?
What is array in java?
How do you reverse sort a list in java?
What is instance example?
Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example
What is stream api in java8?
What is update method called?
does java support pointers?
What is the purpose of the file class in java programming?
what methods would you overwrite in java.lang.object class?